TL-MR3420 3G/4G Wireless N Router User Guide
Backward compatible with 802.11b and 802.11g devices
Provides WPA/WPA2-Enterprise, WPA/WPA2-Personal authentication, TKIP/AES
encryption security
Supports 3G/4G/Dynamic IP/Static IP/PPPoE/L2TP/PPTP Internet access
Supports Virtual Server, Special Application and DMZ host
Supports UPnP, Dynamic DNS, Static Routing
Provides Automatic-connection and Scheduled Connection on certain time to the Internet
Built-in NAT and DHCP server supporting static IP address distributing
Connects Internet on demand and disconnects from the Internet when idle for PPPoE
Provides 64/128-bit WEP encryption security and wireless LAN ACL (Access Control List)
Supports Flow Statistics
Supports firmware upgrade and Web management
1.4 Panel Layout

1.4.1 The Front Panel

Figure 1-1 Front Panel sketch
The Router’s LEDs are located on the front panel (View from left to right).
Item Status Indication
On Power is on.
(PWR) Off Power is off.
On The Router is initializing.
Flashing The Router is working properly.
(SYS)
Off The Router has a system error.
Flashing The Wireless function is enabled.
(WLAN) Off The Wireless function is disabled.
On A device is linked to the corresponding port but there is no
activity.
Flashing An active device is linked to the corresponding port.
WAN
LAN1-4
Off No device is linked to the corresponding port.
On The USB 3G/4G modem is connected but no data being
transferred.
Flashing Data is received or sent through the 3G/4G modem.
USB
Off The USB 3G/4G modem is not connected.
Slow
Flash
A wireless device is connecting to the network by WPS
function. This process will last in the first 2 minutes.
On A wireless device has been successfully added to the network
by WPS function.
WPS
Quick
Flash
A wireless device failed to be added to the network by WPS
function.
Table 1-1 The LEDs description
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